diff --git a/samplecode/SampleRotateCircles.cpp b/samplecode/SampleRotateCircles.cpp
index 1f586be..2dd5be9 100644
--- a/samplecode/SampleRotateCircles.cpp
+++ b/samplecode/SampleRotateCircles.cpp
@@ -38,7 +38,7 @@
     }
 
     virtual void onDrawContent(SkCanvas* canvas) {
-        SkRandom rand;
+        SkMWCRandom rand;
         SkPaint paint;
         paint.setAntiAlias(true);
         paint.setStrokeWidth(20);